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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection

...mplemented the OpenCV square-detection example in my test application, but now need to filter the output, because it's quite messy - or is my code wrong? ...
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How should I store GUID in MySQL tables?

...tes with an Integer. Since he put that challenge out there to me I thought now was a good time to mention it. That being said... You can store a guid as a CHAR(16) binary if you want to make the most optimal use of storage space. ...
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How to convert a Base64 string into a Bitmap image to show it in a ImageView?

...ase64Encoded = encodedString.substring(encodedString.indexOf(",") + 1); Now the pureBase64Encoded object is ready to be decoded: final byte[] decodedBytes = Base64.decode(pureBase64Encoded, Base64.DEFAULT); Now just simply use the line below to turn this into a Bitmap Object! : Bitmap deco...
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How do I change selected value of select2 dropdown with JqGrid?

...irst I initialize select2 on my select: $('#my-best-friend').select2(); Now I manually select Bob in the browser. Next Bob does something naughty and I don't like him anymore. So the system unselects Bob for me: $('#my-best-friend').val('').trigger('change'); Or say I make the system select th...
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Setting PayPal return URL and making it auto return?

...ue = urlencode(stripslashes($value)); $req .= "&$key=$value"; } // Now Post all of that back to PayPal's server using curl, and validate everything with PayPal // We will use CURL instead of PHP for this for a more universally operable script (fsockopen has issues on some environments) //$ur...
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[SOLVED] Can't send payload > 23bytes(MTU setted to 128bytes) - #9 by ...

...ble"),t()},t=()=>{clearInterval(s),s=null} s=setInterval((()=>{a&&t(),Date.now()>e&&r()}),50),document.addEventListener("discourse-ready",(()=>{a=!0,splashWrapper&&splashWrapper.remove(),performance.mark("discourse-splash-removed")}),{once:!0})} ...
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How to avoid explicit 'self' in Python?

...ereby break code. One extreme example: you can write a class without any knowledge of what base classes it might have, and always know whether you are accessing a member or not: class A(some_function()): def f(self): self.member = 42 self.method() That's the complete code! (some_funct...
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Pandas: Setting no. of max rows

... +1 for the pd.describe_option('display'), I did not know all the options – nom-mon-ir May 8 '13 at 19:08 41 ...
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Get names of all files from a folder with Ruby

...havior. If you have a better answer, please post it. I have posted what I know, I am not a Ruby ninja. I regularly accept answers with the most votes. – Željko Filipin Nov 19 '09 at 10:42 ...
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Adding Python Path on Windows 7

...am not sure the %path% is needed. On my Windows 7 system, new cmd windows now have two copies of the previous paths. – Paul Lynch Nov 7 '14 at 15:38 ...